--- /dev/null
+/***
+ This file is part of PulseAudio.
+
+ Copyright 2010 Intel Corporation
+ Contributor: Pierre-Louis Bossart <pierre-louis.bossart@intel.com>
+
+ PulseAudio is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of the License,
+ or (at your option) any later version.
+
+ PulseAudio is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with PulseAudio; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ USA.
+***/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdio.h>
+#include <math.h>
+
+#include <pulse/xmalloc.h>
+#include <pulse/i18n.h>
+
+#include <pulsecore/macro.h>
+#include <pulsecore/core-error.h>
+#include <pulsecore/namereg.h>
+#include <pulsecore/sink.h>
+#include <pulsecore/module.h>
+#include <pulsecore/core-rtclock.h>
+#include <pulsecore/core-util.h>
+#include <pulsecore/core-error.h>
+#include <pulsecore/modargs.h>
+#include <pulsecore/log.h>
+#include <pulsecore/thread.h>
+#include <pulsecore/thread-mq.h>
+#include <pulsecore/rtpoll.h>
+#include <pulsecore/sample-util.h>
+#include <pulsecore/ltdl-helper.h>
+
+#include "module-virtual-source-symdef.h"
+
+PA_MODULE_AUTHOR("Pierre-Louis Bossart");
+PA_MODULE_DESCRIPTION("Virtual source");
+PA_MODULE_VERSION(PACKAGE_VERSION);
+PA_MODULE_LOAD_ONCE(FALSE);
+PA_MODULE_USAGE(
+ _("source_name=<name for the source> "
+ "source_properties=<properties for the source> "
+ "master=<name of source to filter> "
+ "uplink_sink=<name> (optional)"
+ "format=<sample format> "
+ "rate=<sample rate> "
+ "channels=<number of channels> "
+ "channel_map=<channel map> "
+ ));
+
+#define MEMBLOCKQ_MAXLENGTH (16*1024*1024)
+#define BLOCK_USEC 1000 /* FIXME */
+
+struct userdata {
+ pa_module *module;
+
+ pa_source *source;
+ pa_source_output *source_output;
+
+ pa_memblockq *memblockq;
+
+ pa_bool_t auto_desc;
+ unsigned channels;
+
+ /* optional fields for uplink sink */
+ pa_sink *sink;
+ pa_usec_t block_usec;
+ pa_memblockq *sink_memblockq;
+
+};
+
+static const char* const valid_modargs[] = {
+ "source_name",
+ "source_properties",
+ "master",
+ "uplink_sink",
+ "format",
+ "rate",
+ "channels",
+ "channel_map",
+ NULL
+};
+
+/* Called from I/O thread context */
+static int sink_process_msg_cb(pa_msgobject *o, int code, void *data, int64_t offset, pa_memchunk *chunk) {
+
+ switch (code) {
+
+ case PA_SINK_MESSAGE_GET_LATENCY:
+
+ /* there's no real latency here */
+ *((pa_usec_t*) data) = 0;
+
+ return 0;
+ }
+
+ return pa_sink_process_msg(o, code, data, offset, chunk);
+}
+
+/* Called from main context */
+static int sink_set_state_cb(pa_sink *s, pa_sink_state_t state) {
+ struct userdata *u;
+
+ pa_sink_assert_ref(s);
+ pa_assert_se(u = s->userdata);
+
+ if (!PA_SINK_IS_LINKED(state)) {
+ return 0;
+ }
+
+ if (state == PA_SINK_RUNNING) {
+ /* need to wake-up source if it was suspended */
+ pa_source_suspend(u->source, FALSE, PA_SUSPEND_ALL);
+
+ /* FIXME: if there's no client connected, the source will suspend
+ and playback will be stuck. You'd want to prevent the source from
+ sleeping when the uplink sink is active; even if the audio is
+ discarded at least the app isn't stuck */
+
+ } else {
+ /* nothing to do, if the sink becomes idle or suspended let
+ module-suspend-idle handle the sources later */
+ }
+
+ return 0;
+}
+
+static void sink_update_requested_latency_cb(pa_sink *s) {
+ struct userdata *u;
+
+ pa_sink_assert_ref(s);
+ pa_assert_se(u = s->userdata);
+
+ /* FIXME: there's no latency support */
+
+}
+
+
+/* Called from I/O thread context */
+static void sink_request_rewind_cb(pa_sink *s) {
+ struct userdata *u;
+
+ pa_sink_assert_ref(s);
+ pa_assert_se(u = s->userdata);
+
+ /* Do nothing */
+ pa_sink_process_rewind(u->sink, 0);
+
+}
+
+/* Called from I/O thread context */
+static int source_process_msg_cb(pa_msgobject *o, int code, void *data, int64_t offset, pa_memchunk *chunk) {
+ struct userdata *u = PA_SOURCE(o)->userdata;
+
+ switch (code) {
+
+ case PA_SOURCE_MESSAGE_GET_LATENCY:
+
+ /* The source is _put() before the source output is, so let's
+ * make sure we don't access it in that time. Also, the
+ * source output is first shut down, the source second. */
+ if (!PA_SOURCE_IS_LINKED(u->source->thread_info.state) ||
+ !PA_SOURCE_OUTPUT_IS_LINKED(u->source_output->thread_info.state)) {
+ *((pa_usec_t*) data) = 0;
+ return 0;
+ }
+
+ *((pa_usec_t*) data) =
+
+ /* Get the latency of the master source */
+ pa_source_get_latency_within_thread(u->source_output->source) +
+
+ /* Add the latency internal to our source output on top */
+ /* FIXME, no idea what I am doing here */
+ pa_bytes_to_usec(pa_memblockq_get_length(u->source_output->thread_info.delay_memblockq), &u->source_output->source->sample_spec);
+
+ return 0;
+ }
+
+ return pa_source_process_msg(o, code, data, offset, chunk);
+}
+
+/* Called from main context */
+static int source_set_state_cb(pa_source *s, pa_source_state_t state) {
+ struct userdata *u;
+
+ pa_source_assert_ref(s);
+ pa_assert_se(u = s->userdata);
+
+ if (!PA_SOURCE_IS_LINKED(state) ||
+ !PA_SOURCE_OUTPUT_IS_LINKED(pa_source_output_get_state(u->source_output)))
+ return 0;
+
+ pa_source_output_cork(u->source_output, state == PA_SOURCE_SUSPENDED);
+ return 0;
+}
+
+/* Called from I/O thread context */
+static void source_update_requested_latency_cb(pa_source *s) {
+ struct userdata *u;
+
+ pa_source_assert_ref(s);
+ pa_assert_se(u = s->userdata);
+
+ if (!PA_SOURCE_IS_LINKED(u->source->thread_info.state) ||
+ !PA_SOURCE_OUTPUT_IS_LINKED(u->source_output->thread_info.state))
+ return;
+
+ /* Just hand this one over to the master source */
+ pa_source_output_set_requested_latency_within_thread(
+ u->source_output,
+ pa_source_get_requested_latency_within_thread(s));
+}
+
+/* Called from main context */
+static void source_set_volume_cb(pa_source *s) {
+ struct userdata *u;
+
+ pa_source_assert_ref(s);
+ pa_assert_se(u = s->userdata);
+
+ if (!PA_SOURCE_IS_LINKED(pa_source_get_state(s)) ||
+ !PA_SOURCE_OUTPUT_IS_LINKED(pa_source_output_get_state(u->source_output)))
+ return;
+
+ /* FIXME, no volume control in source_output, set volume at the master */
+ pa_source_set_volume(u->source_output->source, &s->volume, TRUE);
+}
+
+static void source_get_volume_cb(pa_source *s) {
+ struct userdata *u;
+
+ pa_source_assert_ref(s);
+ pa_assert_se(u = s->userdata);
+
+ if (!PA_SOURCE_IS_LINKED(pa_source_get_state(s)) ||
+ !PA_SOURCE_OUTPUT_IS_LINKED(pa_source_output_get_state(u->source_output)))
+ return;
+
+ /* FIXME, no volume control in source_output, get the info from the master */
+ pa_source_get_volume(u->source_output->source, TRUE);
+
+ if (pa_cvolume_equal(&s->volume,&u->source_output->source->volume))
+ /* no change */
+ return;
+
+ s->volume = u->source_output->source->volume;
+ pa_source_set_soft_volume(s, NULL);
+}
+
+
+/* Called from main context */
+static void source_set_mute_cb(pa_source *s) {
+ struct userdata *u;
+
+ pa_source_assert_ref(s);
+ pa_assert_se(u = s->userdata);
+
+ if (!PA_SOURCE_IS_LINKED(pa_source_get_state(s)) ||
+ !PA_SOURCE_OUTPUT_IS_LINKED(pa_source_output_get_state(u->source_output)))
+ return;
+
+ /* FIXME, no volume control in source_output, set mute at the master */
+ pa_source_set_mute(u->source_output->source, TRUE, TRUE);
+}
+
+/* Called from main context */
+static void source_get_mute_cb(pa_source *s) {
+ struct userdata *u;
+
+ pa_source_assert_ref(s);
+ pa_assert_se(u = s->userdata);
+
+ if (!PA_SOURCE_IS_LINKED(pa_source_get_state(s)) ||
+ !PA_SOURCE_OUTPUT_IS_LINKED(pa_source_output_get_state(u->source_output)))
+ return;
+
+ /* FIXME, no volume control in source_output, get the info from the master */
+ pa_source_get_mute(u->source_output->source, TRUE);
+}
+
+/* Called from input thread context */
+static void source_output_push_cb(pa_source_output *o, const pa_memchunk *chunk) {
+ struct userdata *u;
+
+ pa_source_output_assert_ref(o);
+ pa_source_output_assert_io_context(o);
+ pa_assert_se(u = o->userdata);
+
+ if (!PA_SOURCE_OUTPUT_IS_LINKED(pa_source_output_get_state(u->source_output))) {
+ pa_log("push when no link?");
+ return;
+ }
+
+ /* PUT YOUR CODE HERE TO DO SOMETHING WITH THE SOURCE DATA */
+
+ /* if uplink sink exists, pull data from there; simplify by using
+ same length as chunk provided by source */
+ if(u->sink && (pa_sink_get_state(u->sink) == PA_SINK_RUNNING)) {
+ pa_memchunk tchunk;
+ size_t nbytes = chunk->length;
+ pa_mix_info streams[2];
+ pa_memchunk target_chunk;
+ void *target;
+ int ch;
+
+ /* Hmm, process any rewind request that might be queued up */
+ pa_sink_process_rewind(u->sink, 0);
+
+ /* get data from the sink */
+ while (pa_memblockq_peek(u->sink_memblockq, &tchunk) < 0) {
+ pa_memchunk nchunk;
+
+ /* make sure we get nbytes from the sink with render_full,
+ otherwise we cannot mix with the uplink */
+ pa_sink_render_full(u->sink, nbytes, &nchunk);
+ pa_memblockq_push(u->sink_memblockq, &nchunk);
+ pa_memblock_unref(nchunk.memblock);
+ }
+ pa_assert(tchunk.length == chunk->length);
+
+ /* move the read pointer for sink memblockq */
+ pa_memblockq_drop(u->sink_memblockq, tchunk.length);
+
+ /* allocate target chunk */
+ /* this could probably be done in-place, but having chunk as both
+ the input and output creates issues with reference counts */
+ target_chunk.index = 0;
+ target_chunk.length = chunk->length;
+ pa_assert(target_chunk.length == chunk->length);
+
+ target_chunk.memblock = pa_memblock_new(o->source->core->mempool,
+ target_chunk.length);
+ pa_assert( target_chunk.memblock );
+
+ /* get target pointer */
+ target = (void*)((uint8_t*)pa_memblock_acquire(target_chunk.memblock)
+ + target_chunk.index);
+
+ /* set-up mixing structure
+ volume was taken care of in sink and source already */
+ streams[0].chunk = *chunk;
+ for(ch=0;ch<o->sample_spec.channels;ch++)
+ streams[0].volume.values[ch] = PA_VOLUME_NORM; /* FIXME */
+ streams[0].volume.channels = o->sample_spec.channels;
+
+ streams[1].chunk = tchunk;
+ for(ch=0;ch<o->sample_spec.channels;ch++)
+ streams[1].volume.values[ch] = PA_VOLUME_NORM; /* FIXME */
+ streams[1].volume.channels = o->sample_spec.channels;
+
+ /* do mixing */
+ pa_mix(streams, /* 2 streams to be mixed */
+ 2,
+ target, /* put result in target chunk */
+ chunk->length, /* same length as input */
+ (const pa_sample_spec *)&o->sample_spec, /* same sample spec for input and output */
+ NULL, /* no volume information */
+ FALSE); /* no mute */
+
+ pa_memblock_release(target_chunk.memblock);
+ pa_memblock_unref(tchunk.memblock); /* clean-up */
+
+ /* forward the data to the virtual source */
+ pa_source_post(u->source, &target_chunk);
+
+ pa_memblock_unref(target_chunk.memblock); /* clean-up */
+
+ } else {
+ /* forward the data to the virtual source */
+ pa_source_post(u->source, chunk);
+ }
+
+
+}
+
+/* Called from input thread context */
+static void source_output_process_rewind_cb(pa_source_output *o, size_t nbytes) {
+ struct userdata *u;
+
+ pa_source_output_assert_ref(o);
+ pa_source_output_assert_io_context(o);
+ pa_assert_se(u = o->userdata);
+
+ /* FIXME, no idea what I am doing here */
+#if 0
+ pa_asyncmsgq_post(u->asyncmsgq, PA_MSGOBJECT(u->sink_input), SINK_INPUT_MESSAGE_REWIND, NULL, (int64_t) nbytes, NULL, NULL);
+ u->send_counter -= (int64_t) nbytes;
+#endif
+}
+
+/* Called from output thread context */
+static int source_output_process_msg_cb(pa_msgobject *obj, int code, void *data, int64_t offset, pa_memchunk *chunk) {
+
+ /* FIXME, nothing to do here ? */
+
+ return pa_source_output_process_msg(obj, code, data, offset, chunk);
+}
+
+/* Called from output thread context */
+static void source_output_attach_cb(pa_source_output *o) {
+ struct userdata *u;
+
+ pa_source_output_assert_ref(o);
+ pa_source_output_assert_io_context(o);
+ pa_assert_se(u = o->userdata);
+
+ pa_source_set_rtpoll(u->source, o->source->thread_info.rtpoll);
+ pa_source_set_latency_range_within_thread(u->source, o->source->thread_info.min_latency, o->source->thread_info.max_latency);
+ pa_source_set_fixed_latency_within_thread(u->source, o->source->thread_info.fixed_latency);
+ pa_source_set_max_rewind_within_thread(u->source, pa_source_output_get_max_rewind(o));
+
+ pa_source_attach_within_thread(u->source);
+}
+
+/* Called from output thread context */
+static void source_output_detach_cb(pa_source_output *o) {
+ struct userdata *u;
+
+ pa_source_output_assert_ref(o);
+ pa_source_output_assert_io_context(o);
+ pa_assert_se(u = o->userdata);
+
+ pa_source_detach_within_thread(u->source);
+ pa_source_set_rtpoll(u->source, NULL);
+}
+
+/* Called from output thread context */
+static void source_output_state_change_cb(pa_source_output *o, pa_source_output_state_t state) {
+ struct userdata *u;
+
+ pa_source_output_assert_ref(o);
+ pa_source_output_assert_io_context(o);
+ pa_assert_se(u = o->userdata);
+
+ /* FIXME */
+#if 0
+ if (PA_SOURCE_OUTPUT_IS_LINKED(state) && o->thread_info.state == PA_SOURCE_OUTPUT_INIT) {
+
+ u->skip = pa_usec_to_bytes(PA_CLIP_SUB(pa_source_get_latency_within_thread(o->source),
+ u->latency),
+ &o->sample_spec);
+
+ pa_log_info("Skipping %lu bytes", (unsigned long) u->skip);
+ }
+#endif
+}
+
+/* Called from main thread */
+static void source_output_kill_cb(pa_source_output *o) {
+ struct userdata *u;
+
+ pa_source_output_assert_ref(o);
+ pa_assert_ctl_context();
+ pa_assert_se(u = o->userdata);
+
+ /* The order here matters! We first kill the source output, followed
+ * by the source. That means the source callbacks must be protected
+ * against an unconnected source output! */
+ pa_source_output_unlink(u->source_output);
+ pa_source_unlink(u->source);
+
+ pa_source_output_unref(u->source_output);
+ u->source_output = NULL;
+
+ pa_source_unref(u->source);
+ u->source = NULL;
+
+ pa_module_unload_request(u->module, TRUE);
+}
+
+/* Called from main thread */
+static pa_bool_t source_output_may_move_to_cb(pa_source_output *o, pa_source *dest) {
+ struct userdata *u;
+
+ pa_source_output_assert_ref(o);
+ pa_assert_ctl_context();
+ pa_assert_se(u = o->userdata);
+
+ /* FIXME */
+ //return dest != u->source_input->source->monitor_source;
+
+ return TRUE;
+}
+
+/* Called from main thread */
+static void source_output_moving_cb(pa_source_output *o, pa_source *dest) {
+ struct userdata *u;
+
+ pa_source_output_assert_ref(o);
+ pa_assert_ctl_context();
+ pa_assert_se(u = o->userdata);
+
+ if (dest) {
+ pa_source_set_asyncmsgq(u->source, dest->asyncmsgq);
+ pa_source_update_flags(u->source, PA_SOURCE_LATENCY|PA_SOURCE_DYNAMIC_LATENCY, dest->flags);
+ } else
+ pa_source_set_asyncmsgq(u->source, NULL);
+
+ if (u->auto_desc && dest) {
+ const char *z;
+ pa_proplist *pl;
+
+ pl = pa_proplist_new();
+ z = pa_proplist_gets(dest->proplist, PA_PROP_DEVICE_DESCRIPTION);
+ pa_proplist_setf(pl, PA_PROP_DEVICE_DESCRIPTION, "Virtual Source %s on %s",
+ pa_proplist_gets(u->source->proplist, "device.vsource.name"), z ? z : dest->name);
+
+ pa_source_update_proplist(u->source, PA_UPDATE_REPLACE, pl);
+ pa_proplist_free(pl);
+ }
+}
+
+
+int pa__init(pa_module*m) {
+ struct userdata *u;
+ pa_sample_spec ss;
+ pa_channel_map map;
+ pa_modargs *ma;
+ pa_source *master=NULL;
+ pa_source_output_new_data source_output_data;
+ pa_source_new_data source_data;
+ pa_bool_t *use_default = NULL;
+
+ /* optional for uplink_sink */
+ pa_sink_new_data sink_data;
+ size_t nbytes;
+
+ pa_assert(m);
+
+ if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
+ pa_log("Failed to parse module arguments.");
+ goto fail;
+ }
+
+ if (!(master = pa_namereg_get(m->core, pa_modargs_get_value(ma, "master", NULL), PA_NAMEREG_SOURCE))) {
+ pa_log("Master source not found");
+ goto fail;
+ }
+
+ pa_assert(master);
+
+ ss = master->sample_spec;
+ ss.format = PA_SAMPLE_FLOAT32;
+ map = master->channel_map;
+ if (pa_modargs_get_sample_spec_and_channel_map(ma, &ss, &map, PA_CHANNEL_MAP_DEFAULT) < 0) {
+ pa_log("Invalid sample format specification or channel map");
+ goto fail;
+ }
+
+
+ u = pa_xnew0(struct userdata, 1);
+ if (!u) {
+ pa_log("Failed to alloc userdata");
+ goto fail;
+ }
+ u->module = m;
+ m->userdata = u;
+ u->memblockq = pa_memblockq_new(0, MEMBLOCKQ_MAXLENGTH, 0, pa_frame_size(&ss), 1, 1, 0, NULL);
+ if (!u->memblockq) {
+ pa_log("Failed to create source memblockq.");
+ goto fail;
+ }
+ u->channels = ss.channels;
+
+ /* Create source */
+ pa_source_new_data_init(&source_data);
+ source_data.driver = __FILE__;
+ source_data.module = m;
+ if (!(source_data.name = pa_xstrdup(pa_modargs_get_value(ma, "source_name", NULL))))
+ source_data.name = pa_sprintf_malloc("%s.vsource", master->name);
+ pa_source_new_data_set_sample_spec(&source_data, &ss);
+ pa_source_new_data_set_channel_map(&source_data, &map);
+ pa_proplist_sets(source_data.proplist, PA_PROP_DEVICE_MASTER_DEVICE, master->name);
+ pa_proplist_sets(source_data.proplist, PA_PROP_DEVICE_CLASS, "filter");
+ pa_proplist_sets(source_data.proplist, "device.vsource.name", source_data.name);
+
+ if (pa_modargs_get_proplist(ma, "source_properties", source_data.proplist, PA_UPDATE_REPLACE) < 0) {
+ pa_log("Invalid properties");
+ pa_source_new_data_done(&source_data);
+ goto fail;
+ }
+
+ if ((u->auto_desc = !pa_proplist_contains(source_data.proplist, PA_PROP_DEVICE_DESCRIPTION))) {
+ const char *z;
+
+ z = pa_proplist_gets(master->proplist, PA_PROP_DEVICE_DESCRIPTION);
+ pa_proplist_setf(source_data.proplist, PA_PROP_DEVICE_DESCRIPTION, "Virtual Source %s on %s", source_data.name, z ? z : master->name);
+ }
+
+ u->source = pa_source_new(m->core, &source_data,
+ PA_SOURCE_HW_MUTE_CTRL|PA_SOURCE_HW_VOLUME_CTRL|PA_SOURCE_DECIBEL_VOLUME|
+ (master->flags & (PA_SOURCE_LATENCY|PA_SOURCE_DYNAMIC_LATENCY)));
+ pa_source_new_data_done(&source_data);
+
+ if (!u->source) {
+ pa_log("Failed to create source.");
+ goto fail;
+ }
+
+ u->source->parent.process_msg = source_process_msg_cb;
+ u->source->set_state = source_set_state_cb;
+ u->source->update_requested_latency = source_update_requested_latency_cb;
+ u->source->set_volume = source_set_volume_cb;
+ u->source->set_mute = source_set_mute_cb;
+ u->source->get_volume = source_get_volume_cb;
+ u->source->get_mute = source_get_mute_cb;
+ u->source->userdata = u;
+
+ pa_source_set_asyncmsgq(u->source, master->asyncmsgq);
+
+ /* Create source output */
+ pa_source_output_new_data_init(&source_output_data);
+ source_output_data.driver = __FILE__;
+ source_output_data.module = m;
+ source_output_data.source = master;
+ /* FIXME
+ source_output_data.flags = PA_SOURCE_OUTPUT_DONT_INHIBIT_AUTO_SUSPEND; */
+
+ pa_proplist_sets(source_output_data.proplist, PA_PROP_MEDIA_NAME, "Virtual Source Stream");
+ pa_proplist_sets(source_output_data.proplist, PA_PROP_MEDIA_ROLE, "filter");
+ pa_source_output_new_data_set_sample_spec(&source_output_data, &ss);
+ pa_source_output_new_data_set_channel_map(&source_output_data, &map);
+
+ pa_source_output_new(&u->source_output, m->core, &source_output_data);
+ pa_source_output_new_data_done(&source_output_data);
+
+ if (!u->source_output)
+ goto fail;
+
+ u->source_output->parent.process_msg = source_output_process_msg_cb;
+ u->source_output->push = source_output_push_cb;
+ u->source_output->process_rewind = source_output_process_rewind_cb;
+ u->source_output->kill = source_output_kill_cb;
+ u->source_output->attach = source_output_attach_cb;
+ u->source_output->detach = source_output_detach_cb;
+ u->source_output->state_change = source_output_state_change_cb;
+ u->source_output->may_move_to = source_output_may_move_to_cb;
+ u->source_output->moving = source_output_moving_cb;
+ u->source_output->userdata = u;
+
+ pa_source_put(u->source);
+ pa_source_output_put(u->source_output);
+
+ /* Create optional uplink sink */
+ pa_sink_new_data_init(&sink_data);
+ sink_data.driver = __FILE__;
+ sink_data.module = m;
+ if ((sink_data.name = pa_xstrdup(pa_modargs_get_value(ma, "uplink_sink", NULL)))) {
+ pa_sink_new_data_set_sample_spec(&sink_data, &ss);
+ pa_sink_new_data_set_channel_map(&sink_data, &map);
+ pa_proplist_sets(sink_data.proplist, PA_PROP_DEVICE_MASTER_DEVICE, master->name);
+ pa_proplist_sets(sink_data.proplist, PA_PROP_DEVICE_CLASS, "uplink sink");
+ pa_proplist_sets(sink_data.proplist, "device.uplink_sink.name", sink_data.name);
+
+ if ((u->auto_desc = !pa_proplist_contains(sink_data.proplist, PA_PROP_DEVICE_DESCRIPTION))) {
+ const char *z;
+
+ z = pa_proplist_gets(master->proplist, PA_PROP_DEVICE_DESCRIPTION);
+ pa_proplist_setf(sink_data.proplist, PA_PROP_DEVICE_DESCRIPTION, "Uplink Sink %s on %s", sink_data.name, z ? z : master->name);
+ }
+
+ u->sink_memblockq = pa_memblockq_new(0, MEMBLOCKQ_MAXLENGTH, 0, pa_frame_size(&ss), 1, 1, 0, NULL);
+ if (!u->sink_memblockq) {
+ pa_log("Failed to create sink memblockq.");
+ goto fail;
+ }
+
+ u->sink = pa_sink_new(m->core, &sink_data, 0); /* FIXME, sink has no capabilities */
+ pa_sink_new_data_done(&sink_data);
+
+ if (!u->sink) {
+ pa_log("Failed to create sink.");
+ goto fail;
+ }
+
+ u->sink->parent.process_msg = sink_process_msg_cb;
+ u->sink->update_requested_latency = sink_update_requested_latency_cb;
+ u->sink->request_rewind = sink_request_rewind_cb;
+ u->sink->set_state = sink_set_state_cb;
+ u->sink->userdata = u;
+
+ pa_sink_set_asyncmsgq(u->sink, master->asyncmsgq);
+
+ /* FIXME: no idea what I am doing here */
+ u->block_usec = BLOCK_USEC;
+ nbytes = pa_usec_to_bytes(u->block_usec, &u->sink->sample_spec);
+ pa_sink_set_max_rewind(u->sink, nbytes);
+ pa_sink_set_max_request(u->sink, nbytes);
+
+ pa_sink_put(u->sink);
+ } else {
+ /* optional uplink sink not enabled */
+ u->sink = NULL;
+ }
+
+ pa_modargs_free(ma);
+
+ pa_xfree(use_default);
+
+ return 0;
+
+ fail:
+ if (ma)
+ pa_modargs_free(ma);
+
+ pa_xfree(use_default);
+
+ pa__done(m);
+
+ return -1;
+}
+
+int pa__get_n_used(pa_module *m) {
+ struct userdata *u;
+
+ pa_assert(m);
+ pa_assert_se(u = m->userdata);
+
+ return pa_source_linked_by(u->source);
+}
+
+void pa__done(pa_module*m) {
+ struct userdata *u;
+
+ pa_assert(m);
+
+ if (!(u = m->userdata))
+ return;
+
+ /* See comments in source_output_kill_cb() above regarding
+ * destruction order! */
+
+ if (u->source_output)
+ pa_source_output_unlink(u->source_output);
+
+ if (u->source)
+ pa_source_unlink(u->source);
+
+ if (u->source_output)
+ pa_source_output_unref(u->source_output);
+
+ if (u->source)
+ pa_source_unref(u->source);
+
+ if (u->sink)
+ pa_sink_unref(u->sink);
+
+ if (u->memblockq)
+ pa_memblockq_free(u->memblockq);
+
+ if (u->sink_memblockq)
+ pa_memblockq_free(u->sink_memblockq);
+
+ pa_xfree(u);
+}
projects / profile / ivi / pulseaudio-panda.git / commitdiff